60 Monren P. Porsitp. 
At the beginning of the autumn winterstander: Jater on thickly 
covered by snow and often by ice. 
! 100. Juncus triglumis |. 
On moist sand and clay at lake-shores, and on open spots in bogs 
and heath. 
Undoubtedly common throughout the whole area, but often ab- 
sent from lists of plants owing to overlooking. 
Rather a southern type, the north limit of which is not known. 
To 70°45’ we have specimens and verified records. My previous record 
from 72°30’ is apparently incorrect (Medd. om Gronld. 50, p. 371), 
owing to an erroneous determination. 
Ascending to 5—600 m. 
Abundantly flowering and fruiting. 
Hibernates usually abundantly covered by snow and often by ice. 
lane 101. Juncus biglumis L. 
On moist sand and clay, often on bare spots in bogs and heath: 
scarcer among taller mosses and other vegetation. 
Very common throughout the whole area. From the archipelago 
of Egedesminde recorded by Kruuse as “rare” but that does not agree 
with our observations. 
Ascending the hills to the snow-line; in tracts of dense vegetation 
often found ascended or on the shady side. 
Widely distributed arctic plant without neither southern nor 
northern limit in Greenland. 
Abundantly flowering and fruiting. 
Hibernates covered by snow. 
A 102. Juncus trifidus L. 
On dry and sunny rock-ledges among other vegetation. sometimes 
on gravel or in herb-mats; seems to be rarer on basalt than on gneiss 
and sandstone. 
Disko: The south coast, at Godhavn rather common and from Mudderbugt 
to Ingigsogq 69°45’ (P.). 
Mainland: Rode Bay 69°20’? (Sor.). From the archipelago of Egedesminde 
reported by Kruuse as ‘“‘common”; no places are indicated and we have not re- 
found it here. N. Stromfjord: Ivnalik 67°47’ (P. & E.), N. Isortoq 67°20’ (Ros.) 
and S$. Kangerdluarssuk 67°00" (W. & H.). 
Southern type, the above-mentioned localities represent the 
known north limit. 
Lowland plant. 
